WMSIC Electronic Components

ERJ3EKF3301V

ModelERJ3EKF3301V
Package0603
BrandPANASONIC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANASONIC ERJ3EKF3301V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF3301V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
3.3kΩ
Electronic Component
1
Electronic Component
BM0264567827
Operating Temperature
55℃~+155℃
Operating Voltage
75V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ERJ3EKF3301V 松下精密厚膜贴片电阻产品概述

ERJ3EKF3301V是松下(PANASONIC)推出的精密级厚膜贴片电阻,专为小型化、高可靠性电子设备设计,具备稳定阻值特性与宽温适应性,适用于工业控制、消费电子等多领域场景。

一、产品定位与核心属性

该电阻属于松下ERJ系列精密厚膜贴片电阻,核心定位为中高精密、小型化、工业级适配的基础电子元件:

  • 工艺类型:厚膜电阻(丝网印刷工艺),兼顾成本与稳定性,优于碳膜电阻的温度特性,可满足多数工业场景的精度需求;
  • 精度等级:精密级(±1%),区别于普通电阻(±5%/±10%),适合对阻值偏差敏感的信号调理、电压分压等电路;
  • 应用导向:表面贴装(SMD)设计,适配高密度电路板贴装,符合现代电子设备小型化趋势。

二、关键参数深度解析

1. 阻值与精度

标称阻值为3.3kΩ(型号代码“3301”对应:330×10¹Ω),精度±1%——即在常规工作条件下,阻值偏差控制在±33Ω以内,可满足传感器信号校准、电源电压反馈等对精度要求较高的场景。

2. 功率与电压

  • 额定功率:100mW(0.1W),需注意实际使用时需根据环境温度、散热条件进行功率降额(如+125℃环境下需降额至70mW以内,避免过负荷损坏);
  • 最大工作电压:75V,为电阻两端允许施加的最高电压,若超过则可能导致击穿或阻值漂移。

3. 温度系数(TCR)

温度系数为**±100ppm/℃**,即温度每变化1℃,阻值变化±0.01%。在工作温度范围(-55℃~+155℃)内,最大阻值变化约±2.1%(155℃与-55℃温差210℃,210×100ppm=0.021),稳定性符合工业级设备的宽温要求。

4. 工作温度范围

覆盖**-55℃~+155℃**,适配寒冷地区户外设备、汽车发动机舱周边、工业炉附近等极端温度场景,避免低温下阻值漂移、高温下性能衰减。

三、封装与物理特性

根据松下ERJ系列型号命名规则,“ERJ3E”前缀对应0603封装(英制:0.06×0.03英寸;公制:1.6×0.8mm),该封装具备以下特点:

  • 尺寸紧凑:适配小型化设备(如便携式仪器、智能手机)的高密度贴装;
  • 焊接兼容性:支持常规回流焊、波峰焊工艺,无引脚设计降低焊接故障率;
  • 抗振动性:表面贴装结构比直插电阻更抗振动,适合车载、工业机械等振动环境。

四、可靠性与环境适应性

松下厚膜电阻采用成熟工艺与严格质量控制,具备以下可靠性优势:

  1. 耐环境性:符合JIS C 5102等标准,抗湿度(湿度循环测试阻值变化≤0.5%)、抗盐雾(沿海或高湿环境下长期稳定);
  2. 机械稳定性:抗冲击(跌落测试无开路/短路)、抗热冲击(-55℃~+155℃循环100次阻值变化≤0.3%);
  3. 长期稳定性:额定条件下1000小时老化测试,阻值变化率≤0.5%,满足设备5~10年的长寿命需求。

五、典型应用领域

  1. 工业控制电路:PLC输入输出接口、传感器信号调理(如温度/压力传感器分压电阻);
  2. 消费电子:智能手机电源管理模块(偏置电阻)、音频电路信号衰减;
  3. 汽车电子(低功耗模块):车载信息娱乐系统按键电路、仪表盘背光控制;
  4. 医疗设备:血糖仪、血压计等小型仪器的精密测量电路;
  5. 通信设备:路由器信号放大偏置电阻、射频前端匹配电阻。

总结

ERJ3EKF3301V以紧凑封装、稳定阻值、宽温适应性为核心优势,成为小型化、高可靠性电子设备的理想基础元件,覆盖工业、消费、汽车等多领域应用,符合松下对精密电子元件的品质要求。

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